4 DOLPHIN
ALAVO
O & M MANUAL
www.dolphinsolutions.co.uk
A P P L I C AT I O N
The Dolphin Alavo TMV3 thermostatic mixing valve has been independently tested by WRc-NSF
against the requirements of BS 7942:2000 and NHS D08 and certified as complying with the
requirements of the TMV3 Scheme and is suitable for use in the designations shown in the table
below.
Valves approved for designation for use ‘HP’ only:
If a water supply is fed by gravity then the supply pressure should be verified to ensure the conditions
of use are appropriate for the valve.
The range of available temperature adjustment is 35°C to 48°C
BUT
the mixed water temperature
at the terminal fitting should never be set to a temperature that exceeds the maximum set outlet
temperature for the application.
C O M M I S S I O N I N G
The valve must be commissioned under normal site system conditions
and after establishing supply conditions with the hot and cold water
supplies open, leave the system running to allow temperatures and
pressures to stabilise and be checked.
Prior to commencing commissioning, the following checks should be
carried out.
• The designation of the thermostatic mixing valve matches the application.
• The supply pressures and temperatures are within the operating range of the valve.
• Isolating valves and strainers are provided.
• The supply temperatures are within the range permitted for the valve and by guidance information
on the prevention of legionella etc
If all these conditions are met, proceed to set the temperature as described below.
The Pegler Yorkshire model P405 thermostatic mixing valve is supplied factory set at 43°C but the
valve may be simply adjusted after installation.
The mixed water temperature at the terminal fitting must never exceed the maximum
temperature setting for the particular application (See Table 2). Note, It is not possible to install
one thermostatic mixing valve to supply two differing applications unless the temperature of the
higher setting is limited to that of the lower application.
A L AVO T H E R M O STAT I C M I X I N G VA LV E
